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Rigging test
rigging certification
Question | Answer |
---|---|
ANNEALED | Subject metal to a process of heating and slow cooling in order to toughen and reduce brittleness |
BIGHT | Central part of the rope |
BINDING | Restrained of restricted movement of chain links |
CENTER OF GRAVITY (CG) | Point on a object around which all of the weight of the object is evenly distributed. |
CHAIN BINDER | Cam-or gear-operated device used to remove slack in a chain. |
D/d | Relationship between the wire rope diameter and an object it is bent around D=Diameter of object bent around. d=diameter of wirebrope |
DOUBLE BASKET HITCH | Configuration that uses two slings to cradle/basket the bottom and both sides of the load when attached to the hoisting device. |
DOUBLE CHOKE HITCH | Configuration of two slings that wrap partially around the load and form a choke hitch above the top of the load when attached to the hoisting device |
DOUBLE WRAP BASKET HITCH | Configuration that uses two slings to make a complete wrap around the load before attaching to hoisting device |
DOUBLE WRAP CHOKE HITCH | Configuration that uses two slings to make a complete wrap around the load and form a choke hitch above the top of the load when attached to the hoisting device |
DUCTILE | Easily drawn into wire or hammered thin |
DUCTILITY | Capacity of a material to be stretched or drawn into a wire |
FACTOR OF SAFETY/(FOS) | |
FLOAT | Steel foot attached to the cylinder or jack on the outrigger used to support crane |
HEADACHE BALL | |
TRUNNION | Cylindrical protrusion used for hoisting |
WHIPPING | Securing the ends of fiber rope to prevent them from untwisting |
TATTLE TAILS | Components installed in the body of a sling that serve as overload indicators will retract and disappear if sling is overloaded |